The old iterations of the rankings produced collaboratively by THE and QS Quacquarelli Symonds received a number of criticisms. Some critics expressed concern about the manner in which the peer review conducted by THE-QS was carried out.[1] In a report,[2] Peter Wills from the University of Auckland, New Zealand wrote of the Times Higher Education-QS World University Rankings:

But we note also that this survey establishes its rankings by appealing to university staff, even offering financial enticements to participate (see Appendix II). Staff are likely to feel it is in their greatest interest to rank their own institution more highly than others. This means the results of the survey and any apparent change in ranking are highly questionable, and that a high ranking has no real intrinsic value in any case. We are vehemently opposed to the evaluation of the University according to the outcome of such PR competitions.

The use of a citation database must have an impact because such databases do not have as wide a cover of the social sciences (or arts and humanities) as the natural sciences. Hence the low position of the London School of Economics, caused primarily by its citations score, is a result not of the output of an outstanding institution but the database and the fact that the LSE does not have the counterweight of a large natural science base.